
<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			(function(){
				var a =b =3;
			})();
			console.log("a defined?"+(typeof a!== 'undefined'));
			console.log("b defined?"+(typeof b!== 'undefined'));
		</script>
	</body>
</html>
